Setting up `pkg.pr.new` in CI to have an installable npm package url for every PR

Summary

Integrate `pkg.pr.new` into the CI pipeline to automatically generate installable npm package URLs for each pull request. This will allow for easy testing of PR changes directly in other projects by overriding package dependencies.

Skills Required

CI/CD configurationTypeScriptShell scriptingnpm package management

Files Likely Touched

ci/workflows/publish.yml
.github/workflows/pr.yml
scripts/publish.sh
package.json